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#ifndef __INTEL_BUFOPS_H__
#define __INTEL_BUFOPS_H__
#include <stdint.h>
#include "igt_aux.h"
struct buf_ops;
struct intel_buf {
struct buf_ops *bops;
uint32_t handle;
uint32_t stride;
uint32_t tiling;
uint32_t bpp;
uint32_t size;
uint32_t compression;
struct {
uint32_t offset;
uint32_t stride;
} aux;
};
static inline unsigned int intel_buf_width(const struct intel_buf *buf)
{
return buf->stride / (buf->bpp / 8);
}
static inline unsigned int intel_buf_height(const struct intel_buf *buf)
{
return buf->size / buf->stride;
}
static inline unsigned int
intel_buf_aux_width(int gen, const struct intel_buf *buf)
{
/*
* GEN12+: The AUX CCS unit size is 64 bytes mapping 4 main surface
* tiles. Thus the width of the CCS unit is 4*32=128 pixels on the
* main surface.
*/
if (gen >= 12)
return DIV_ROUND_UP(intel_buf_width(buf), 128) * 64;
return DIV_ROUND_UP(intel_buf_width(buf), 1024) * 128;
}
static inline unsigned int
intel_buf_aux_height(int gen, const struct intel_buf *buf)
{
/*
* GEN12+: The AUX CCS unit size is 64 bytes mapping 4 main surface
* tiles. Thus the height of the CCS unit is 32 pixel rows on the main
* surface.
*/
if (gen >= 12)
return DIV_ROUND_UP(intel_buf_height(buf), 32);
return DIV_ROUND_UP(intel_buf_height(buf), 512) * 32;
}
struct buf_ops *buf_ops_create(int fd);
void buf_ops_destroy(struct buf_ops *bops);
int buf_ops_getfd(struct buf_ops *bops);
bool buf_ops_set_software_tiling(struct buf_ops *bops,
uint32_t tiling,
bool use_software_tiling);
void intel_buf_to_linear(struct buf_ops *bops, struct intel_buf *buf,
uint32_t *linear);
void linear_to_intel_buf(struct buf_ops *bops, struct intel_buf *buf,
uint32_t *linear);
bool buf_ops_has_hw_fence(struct buf_ops *bops, uint32_t tiling);
bool buf_ops_has_tiling_support(struct buf_ops *bops, uint32_t tiling);
void intel_buf_init(struct buf_ops *bops, struct intel_buf *buf,
int width, int height, int bpp, int alignment,
uint32_t tiling, uint32_t compression);
void intel_buf_close(struct buf_ops *bops, struct intel_buf *buf);
void intel_buf_init_using_handle(struct buf_ops *bops,
uint32_t handle,
struct intel_buf *buf,
int width, int height, int bpp, int alignment,
uint32_t req_tiling, uint32_t compression);
#endif
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